<!DOCTYPE html>
<html>
  <head>
    <title>Vue事件处理</title>
  </head>

  <body>
    <div id="demo">
      <h1>attr update</h1>
      <p :title="foo">{{foo}}</p>
    </div>
    <script src="../../dist/vue.js"></script>
    <script>
      // 创建实例
      const app = new Vue({
        el: "#demo",
        data() {
          return {
            foo: "foo",
          };
        },
        created() {
          setTimeout(() => {
            this.foo = "fooooooooooooooooo";
          }, 1000);
        },
      });
    </script>
  </body>
</html>
